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Table 3 Effect of the physical activity on BMC at follow up

From: The intensity of physical activity influences bone mineral accrual in childhood: the childhood health, activity and motor performance school (the CHAMPS) study, Denmark

Variable Coefficient estimate Standard error P- value
BMC baseline 0.44 0.03 <0.001
BA follow up 0.97 0.04 <0.001
Gender 35.20 9.50 <0.001
θ mh = log π mh π l 20.94 6.58 0.001
θ s = log π s π l 27.77 8.17 0.001
Gender # θ s −36.03 13.11 0.006
Height follow up −3.96 0.17 <0.001
Puberty follow up 29.99 3.52 <0.001
Gender # puberty −16.95 5.14 0.001
  1. Note: π mh s , π l represents the percentage of the total time spent in, moderate-high, sedentary and low intensity activity respectively. #: Interaction. The girls were chosen as the reference level for gender.